Reich points out about 70% of US bonds are bought by Americans and much of that is now being bought by the ultra wealthy. Why? Because they get huge tax cuts from Trump, they use that money to among other things buy bonds, which ultimately drives UP the interest rate so they make money off the bonds. But the short term buy props up the bond market allowing Trump to pretend he's doing something good. But the end result is the rich get richer and the national debt goes UP because the interest rates go up.
Guess who pays for all this, us.